Description: Interactive scatter plots showing 3-dimensional embeddings of ultra-high dimensional and sparse mutational profile vectors. Each point in each scatter represents a single PCAWG tumor and is color coded according to its cancer site. For each tumor, meta-feature scalar projections along the directions of the whole genome mutational profile (Panel-a), simulated whole exome mutational profile (Panel-b), and simulated targeted sequencing mutational profile (Panel-c) are first obtained; 30 component principal component analysis followed by 3-dimensional uniform manifold approximation and projection analyses are subsequently performed on the resulting scalar projections to obtain an approximate 3-dimensional representation of each mutational profile.